Abstract
In this article, we theoretically study electromagnetic waves that propagate in one-dimensional cylindrical photonic crystals (1DCPC) containing single negative materials. We examine the optical properties of three gaps namely; the zero-effective phase (zero-ϕ ), the zero-permittivity (zero-e ) and the zero-permeability (zero-μ ). We calculate the optical reflectance for transverse electric(magnetic) TE(TM) polarizations using the transfer matrix method in the cylindrical coordinates. We study the effect of azimuthal mode number (m ) and the starting radius on these gaps. The results show that the zero-μ (zero-e ) gap is found for TE(TM) polarization at frequency where μ (e ) changes its sign for m ≥ 1. The width of the gap increases by decreasing the starting radius or by increasing m , whereas the zero-ϕ gap remains invariant. In addition, we present a brief design of 1D-CPC that has a polarization-independent wide gap especially for high azimuthal mode number (m > 2). Our results can help improve the performance of microwave devices independent of the source wave polarization.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call